
//app.js
var loginComplete = false
const config = require('config.js');
App({
  onLaunch: function() {
    // 展示本地存储能力
    var logs = wx.getStorageSync('logs') || []
    logs.unshift(Date.now())
    wx.setStorageSync('logs', logs)


    // 登录
    wx.login({
      success: res => {
        // 发送 res.code 到后台换取 openId, sessionKey, unionId
      }
    })

    // 获取用户信息
    wx.getSetting({
      success: res => {
        if (res.authSetting['scope.userInfo']) {
          // 已经授权，可以直接调用 getUserInfo 获取头像昵称，不会弹框
          wx.getUserInfo({
            success: res => {
              // 可以将 res 发送给后台解码出 unionId
              this.globalData.userInfo = res.userInfo

              // 由于 getUserInfo 是网络请求，可能会在 Page.onLoad 之后才返回
              // 所以此处加入 callback 以防止这种情况
              if (this.userInfoReadyCallback) {
                this.userInfoReadyCallback(res)
              }
            }
          })
        }
      }
    })
    // 获取系统状态栏信息
    wx.getSystemInfo({
      success: e => {
        this.globalData.StatusBar = e.statusBarHeight;
        let capsule = wx.getMenuButtonBoundingClientRect();
        if (capsule) {
         	this.globalData.Custom = capsule;
        	this.globalData.CustomBar = capsule.bottom + capsule.top - e.statusBarHeight;
        } else {
        	this.globalData.CustomBar = e.statusBarHeight + 50;
        }
      }
    })
  },
  globalData: {
    userInfo: null
  },

  onShow: function () {
    
  },

  //提示信息
  tip: function (msg, icon) {
    if (msg) {
      wx.showToast({
        title: msg,
        icon: icon ? icon : 'none',
        duration: 2000
      })
    }
  },
  
  //微信登录
  wxLogin: function () {
    var _this = this;
    wx.login({
      success: res => {
        if (res.code) {
          _this.getOpenId(res.code);

        } else {
          loginComplete = true
          _this.doComplete()
          //_this.tip("微信登录失败", 'loading')
        }
      }
    })
  },

  /**
	 * 根据微信登录获取的code去服务端获取openId及绑定的用户信息
	 */

  getOpenId: function (code) {
    var _this = this
    wx.request({
      url: config.openIdUrl,
      method: 'POST',
      header: {
        "content-type": "application/x-www-form-urlencoded"
      },
      data: {
        "code": code,
      },
      success: function (result) {
        
        wx.setStorageSync("sessionKey", result.data.session_key)
      },
    })
  },

  doComplete: function () {
    if (loginComplete) {//&& getInfoComplete
      this.loadComplete = true
      wx.hideLoading()
      wx.showTabBar();
    }
  },
  trim: function(str){
    if (str == null || str == ''){
      return '';
    }
    return str.replace(/(^\s*)|(\s*$)/g, '');
  },
  isNull: function(str){
    return (str == null || str == '') ? true : false;
  }
})